Grease-feeder.



Nq. 739,714. PATENTED SEPT. 2z, 1903. c. T. PBBHN. GREASE FEEDER..v A PPLIOATION FILED NOV. 6, 1902. E0 MODEL. 2 SHEETS-SHEET 2.

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UNITED STATES Patented September 22, 1903.

PATENT OEEIcE.

CHARLES T. PREHN, OF LUDINGTON, MICHIGAN, ASSIGNOR OF ONE-HALF TO DANIEL CHUBB, OF LUDINGTON, MICHIGAN.

GREASE-FEEDER.

SPECIFICATION forming part of Letters Patent No. 739,714, dated September 22, 1903.

Application filed November 6, 1902. Serial No. 130,278. (No model.)

-of Lndington, in the county of Mason and State of Michigan, have invented a new and Improved Grease-Feeder, of which the follow-` ing is a full, clear, and exact description.

This invention relates to a device forfeeding a grease or other lubricant to an engine, the feeding means being operated-from and in time with the movement of the engine, so that the feed of lubricant is proportionate to the speed of the engine. The invention resides in certain novel features of construction and relative arrangement of parts, all of which will be fully described hereinafter.

This specification is an exact description of one example of my invention, while the claims define the actual scope thereof.

Reference is to be had to the accompanying drawings, forming a part of this specification,

in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a front elevation of the invention with parts in section. Fig. 2 is a plan view. Fig. 3 is anenlarged sectional View of the grease-cup and the parts immediately adjacent thereto, and Fig. 4 is a detail section on line 4 4 of Fig. 3. f

10 indicates a rotary tubular member driven in time with the engine and communicating with the part to be lubricated. This shaft 10 is connected by a coupling 11 with the stationary pipe 12, which passes from the greasecup 14. The pipe 12 and cup 14 are sustained on a frame 15 by means of a boxl, in which the pipe is mounted to turn, so as to allow the cup to swing downward, as will be hereinafter fully described. The frame 15 is fastened to the engine-frame or to any other convenient support, so as to place the apparatus in the proper position with respectto the engine.

medium of a collar 19 with an arm 20, which has a forked inner end 21, arranged to swing loosely around a shaft 22, mounted to rotate in bearings 23, fastened to the frame 15. This shaft 22 extends above and parallel with the rotary member 10, and the arm 20 has a pawl 24, which works with a ratchet-wheel 25, fastened on the shaft 22 and lying within the forked end 21 of the arm.

26 indicates a pawl fastened to theframe 15 through the medium of a bracket 27, this pawl preventing back movement` of the ratchet. As the tubular member 10 turns the arm 20 is driven up and down by the action of the eccentric 16 and its allied parts, and thus a step-by-step movement is imparted to the shaft 22.

Formed on the shaft 22 is a worm 28, which meshes with a worm-wheel 29, connected by a thimble 30 with the upper portion of the grease-cu p 14. This connection is such that the worm wheel may turn freely on the vgrease-cup. The worm-wheel has a key 31,

whichis fitted in a groove 32, formed in the rod or stem 33 of a follower 34. This piston is fast to the rod, and the interior of the greasecup is threaded to match corresponding threads on the periphery of the piston, so that as the piston is turned it is screwed up or down in the grease-cup 14. At its upper portion the stem 33 has an annular reduced portion 35. As the worm 28 is turned rotary movement is imparted to the worm-wheel 29, and the follower 34 and its stem are moved down in the grease-cu p. This movement continues until the follower reaches the bottom of the grease-cup, and at this time the rod or stern 33 will have been lowered to place the reduced portion35 opposite the key 31, so that further rotation of the worm-wheel 29 will not impart movement to the parts 33 and 34. The key 3l is fastened securely to the worin-Wheel 29 and projects through an oritice in the thimble 30, this thimble therefore turning with the Worm-wheel.

36 indicates an elbow-lever fulcrumed at` this elbow-lever, so as to engage its bill with an upwardly-.projected flange 2 9 on the Worm-wheel 29. By pushing rightward (see Fig. 3) the vertical arm of the elbow-lever 36 the bill 40 will be disengaged from the fiange 29a of the wheel 29, and the grease-cup may then be swung outward, so that the gear 29 disengages the worm 28. Then the stem 33 may be manually operated by means of the handle 42,' so as to adjust the follower 34 to any desired position or to return it to raised position. The throw of the arm 2() may be regulated by adjusting the collar 19, as will be understood, and the arrangement may be made to feed at any desired speed.

Various changes in the form, proportions, and minor details of my invention may be resorted to at will without departing from the spirit and scope thereof. Hence I con- Sider myself entitled to all such variations as may lie within the intent of my claims.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. The combination with a lubricant-cup, and a feeding device therein, of means for automatically operating the feeding device, and a pipe leading from said cup and carrying the same, the said pipe being mounted to turn in a suitable support, whereby the cup can be moved to connect and disconnect the feeding device and the said operating means, as set forth.

2. The combination with a lubricant-cup and with a feeding device therein, of a driven eccentric, a swinging arm operated therefrom, a rotary shaft, means for rotating the shaft from the swinging arm, a worm on the shaft, a wormwheel in connection with the feeding device of the lubricant-cup and normally meshed with the worm, a delivery-pipe leading from the cup and carrying th same, the said pipe being mounted to turn in a suitable support, whereby the cup can be moved to engage the worm-wheel with the worm or disengage said parts, and means for holding the worm-wheel in engagement with the worm.

3. The combination with a lubricant-cup, of a piston having threaded engagement with the interiorthereof, a rod or stem attached to the piston, and a revolubly-driven member splined on the rod or stem, said rod or stem having at one end an annular reduced portion, for the purpose specified.

4. The combination withalubricant-cup, of a revoluble member mounted above the same, a thimble connecting said member with the lubricant-cup for turning motion thereon, a piston threaded within the lubricant-cup, and

a stem attached to the piston and having a.

longitudinal groove receiving a key or projection on the said revoluble member, the key projecting through an orifice in the thimble, the said stem having a reduced portion at its upper end arranged to be opposite the key when thefollower reaches the bottom of the cup, for the purpose set forth.

5. The combination with alubrican t-cu p, of a revoluble member mounted above the same, a thimble connecting said member with the lubricant-cup for turning motion thereon, a piston threaded within the lubricant-cup, and a stem attached to the piston and having a groove receiving a key or projectionon the said revoluble member, the stem or rod also having an annular reduced portion at its up- -per end communicating with the groove, for

the purpose specified.

6. The combination with a lubricant-cup mounted for swinging movement, of a piston havin g threaded engagement wi th the interior thereof, a stem attached to the piston and eX- tending to the top of the lubricant-cup, a revoluble memberv carried by the lubricant-cup and connected with the piston toimpart movement thereto, means for driving the revoluble member, and a lever yieldingly pressed against said revoluble member to hold the same in engagement with the driving means.

7. The combination with a lubricant-cup, and a feeding device therein, of a deliverytube passing from the lubricant-cup, a tubular shaft communicating with the deliverytube and mounted to turn, and means for operating the feeding device, said means being driven from the tubular shaft, the said lubricant-cup being mounted to swing to connect and disconnect the feeding device and the operating means, as set forth.

8. The combination with a lubricant-cup mounted for swinging movement, and a piston movable therein, of a delivery-tube passing from the lubricant-cup, a tubular shaft communicating with the delivery-tube and mounted to turn, a rod or stem connected with the piston, a gear-wheel carried by the lubricant-cup and connected with the stem of the piston for imparting movement thereto, the said gear-wheel having an upwardlyprojecting marginal flange, an elbow-lever having one of its members adapted to engage the said flange, to hold the gear-wheel in engagement with the driving means,and a spring engaging the other member of the lever, as

f set forth.

9. The combination with alubricant-cup, of a follower working therein, a member connected with the follower for imparting movement thereto, means for driving the said member, thelubricant-cup being mounted to swing to disconnect the said member from the driving means, means for manually operating the follower, and means for normally holding the cup with the said member in operative connection with the driving means, as set forth.

l0. The combination with a lubricant-cup, of a piston mounted to move in said cup, a gear-wheel carried by the cup and'connected with the piston for imparting movement thereto, means for driving the gear-wheel, the said IOO f lubricant-cup being mounted to swing wherename to this specification in the presence of by it can be swung,r outward to disengage the two subscribing Witnesses. gear-Wheel from the driving means, for the 1 purpose set forth, and means for normally CHARLES r1 PREHN' 5 holding lche lubricant-cup with the gear- Witnesses:

wheel in engagement with the driving means. JOHN GAVAN,

In testimony .whereof I have signed my M. H. COBURN. 

